What is MJF 3D printing?

Multi Jet Fusion (MJF) is an industrial 3D printing process known for its speed and ability to produce strong, functional parts. Unlike methods that use a laser, a printing head deposits a fusing agent onto a bed of nylon powder. An infrared energy source then passes over the bed, fusing the powder where the agent was applied. A detailing agent is used around the edges to improve resolution. This layer-by-layer process results in dense, isotropic parts with excellent mechanical properties and a slightly grainy surface finish.

Is MJF stronger than SLS?

Generally, MJF parts are slightly stronger and more consistent than those made with Selective Laser Sintering (SLS). While both use nylon powder, the MJF process applies energy more evenly across the entire layer, leading to parts with more uniform mechanical properties. They typically exhibit higher tensile strength, better elongation at break (less brittleness), and a smoother surface on vertical sides. This makes MJF a preferred choice for functional prototypes and end-use parts that require reliability.

What materials are used in MJF printing?

The primary material is Polyamide 12 (PA12/Nylon 12), valued for its excellent strength, stiffness, and chemical resistance. The technology also supports: Polyamide 11 (PA11): Derived from renewable castor oil, offering higher elasticity and impact resistance. TPU (Thermoplastic Polyurethane): For flexible, rubber-like parts. Polypropylene (PP): For living hinges and excellent chemical resistance. Glass-filled composites (e.g., PA12-GB): For increased stiffness and thermal stability. All materials come in fine powder form, and the unfused powder acts as support during printing, allowing for complex geometries.

Is MJF suitable for mass production?

Yes, MJF is exceptionally well-suited for low-to-medium volume manufacturing, often called "bridge production" or "short-run production." Its key advantages for production are: High Productivity: The entire print bed is fused simultaneously per layer, making it much faster than laser-based methods for full builds. Consistency: It produces highly repeatable parts with minimal variation from one batch to the next. Economic Efficiency: Lower per-part cost at higher volumes compared to other 3D printing methods, making it cost-effective for producing hundreds to thousands of identical parts.

How accurate is MJF 3D printing?

MJF offers high accuracy and excellent feature detail. The standard layer resolution is 80 microns, allowing it to capture fine details and produce smooth vertical surfaces. Dimensional accuracy is typically within ±0.3% (with a lower limit of ±0.3 mm), meaning a 100 mm part could vary by about 0.3 mm. It excels at producing complex geometries, thin walls, and intricate channels that would be difficult or impossible with traditional manufacturing.

What is the cost and lead time of MJF 3D printing service?

It depends on the volume and weight of the design. The most commen MJF printing material is Black PA12 . Color is light grey after MJF 3d printing and then dye into black color. The lead time is about 3-7 days.

What is the biggest parts can you 3d print with MJF 3D printing service?

The biggest dimensions we can 3d print is 380*284*380mmmm.

Can you ship to Europe?

Yes. We can deliver our goods around the world. We have partners that can ship the parcel to you with DHL, FedEx, UPS, Freight, Sea and other shipping solutions.

Can you paint the MJF 3d printed parts?

Because the part itself is light grey color and will become black color after dying. So the color is only black now. You can choose SLS white PA12 to produce your parts if you need different color.

MJF(HP Multi Jet Fusion)

HP Multi Jet Fusion (MJF) 3D Printing Service – Industrial-Grade Nylon Parts

In the rapidly evolving world of additive manufacturing, HP Multi Jet Fusion (MJF) 3d printing service has emerged as a transformative technology that’s reshaping how manufacturers approach prototyping and production. Since its introduction to the market in 2016, MJF additive manufacturing has established itself as a reliable manufacturing technology capable of producing everything from automotive components and factory tools to orthopedic braces and consumer goods .

Unlike traditional manufacturing methods that often require compromises between speed, quality, and cost, HP Multi Jet Fusion technology offers an exceptional combination of all three—delivering parts up to 10 times faster than comparable technologies while reducing printing costs by 50% and maintaining outstanding precision .

At Lava, we’re committed to helping our readers understand emerging technologies that are shaping the future of manufacturing. In this comprehensive guide, we’ll explore the inner workings of HP’s MJF technology, its applications across industries, material options, and why it might be the ideal solution for your manufacturing needs.

We’re providing On-demand Custom MJF printing in affordable prices. Bulk MJF printing also available. We’ve the Expert 3D printing engineers who can make high-resolution MJF printing models on your demand.

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How HP Multi Jet Fusion Technology Works: Powder Bed Fusion Process Explained

HP’s Multi Jet Fusion employs a sophisticated process that combines precision inkjet printing with thermal energy to create functional parts layer by layer. This powder bed fusion 3D printing technology builds upon HP’s decades of research in inkjet printing, jetable materials, precision mechanics, materials science, and imaging .

The professional MJF 3D printing process consists of five key steps :

Material coating: A thin layer of powder material is spread across the build platform by a material coater module.
Thermal control: The system carefully controls the temperature of the powder layer to prepare it for fusion.
Agent application: Print heads selectively deposit a fusing agent (which absorbs energy) onto areas that will become part of the final object. Simultaneously, a detailing agent is applied to the edges to ensure precision and smooth surfaces.
Energy application: An infrared heating unit passes over the entire bed, causing areas with fusing agent to melt and fuse together while other areas remain powdered.
Layer completion: The build platform lowers slightly, and the process repeats for the next layer until the entire part is complete.

One of MJF rapid prototyping key differentiators is its use of multiple print heads that can deposit 30 million drops per second across each inch of the build platform, enabling incredibly fast print speeds without sacrificing resolution .

Table: HP MJF Technical Specifications

	HP Jet Fusion 4200 Series	HP Jet Fusion 5200 Series	HP Jet Fusion 5420W
Best For	Industrial prototyping and final part production	Mass production (thousands of parts)	White parts requiring vibrant coloring
Key Features	Easy to use, scalable solution	Upgraded lamp power, efficiency improvements	Exclusive white nylon PA12 material
Material Compatibility	Standard HP materials	Expanded material options	Specialized white materials
Unique Advantage	Balanced performance and cost	High-volume production optimized	Excellent color dyeing capability

Key Advantages of HP MJF 3D Printing for Functional & End-Use Parts

1. Unmatched Speed and Efficiency

MJF’s most significant advantage is its remarkable production speed. In comparative tests, while FDM technology produced 30 gears and laser sintering (SLS) produced 79 gears in 3 hours, MJF 3d print manufactured an impressive 1,000 gears in the same timeframe . This 10x speed advantage over other technologies makes MJF ideal for both prototyping and production applications.

2. Exceptional Part Quality

MJF 3d printing produces high-density 3D printed parts with consistent mechanical properties in all directions (isotropic), unlike some technologies that show weakness along the Z-axis . The technology also achieves high precision with XY resolution of approximately 40 microns, thanks to print heads capable of 1200 dpi resolution . The resulting parts have excellent surface quality comparable to injection-molded components, often requiring no post-processing .

3. Design Freedom and Complexity

Without the need for support structures, MJF enables geometric possibilities that are challenging or impossible with other manufacturing methods. This allows for clean internal channels, integrated features, and complex geometries . Designers can create optimized structures for specific applications like aerodynamic surfaces, thermal management, or structural efficiency without traditional manufacturing constraints.

4. Material Efficiency and Sustainability

MJF offers impressive material reuse rates of up to 80%, significantly reducing waste compared to traditional SLS technology, which typically achieves only about 50% material reuse . The closed-loop powder management system ensures minimal waste and a cleaner working environment . For sustainability-conscious manufacturers, this efficiency translates to both environmental and economic benefits.

5. Cost-Effective Production

By eliminating the need for tooling and molds, MJF removes substantial upfront costs associated with traditional manufacturing . The technology enables economical low-to mid-volume production runs without the high per-part costs typically associated with small batch manufacturing . As production volumes increase, the per-part cost decreases significantly, making it competitive with injection molding at certain production quantities.

HP MJF Materials: PA12, PA11 & High-Strength Thermoplastic Options

The material portfolio for HP MJF has expanded significantly since the technology’s introduction. While initially limited to PA12 nylon 3D printing service, the range of available materials now includes :

High Reusability PA 12 Nylon MJF Printing: A strong and durable 3D printed parts, durable thermoplastic 3D printing offering excellent mechanical properties and surface quality
High Reusability PA 11 Printing: Made from renewable resources, offering high elasticity and impact resistance
High Reusability PA 12 Glass Bead: Glass-filled composite for increased stiffness and thermal stability
High Reusability PP (Polypropylene): Enabled by BASF, offering chemical resistance and weldability
TPU (Thermoplastic Polyurethane): Flexible material for applications requiring elasticity and energy return
High Reusability PA 12 W (White): Special white material optimized for vibrant color dyeing applications

The ongoing development of new materials continues to expand MJF 3d printing service’s application potential across industries from automotive to medical devices.

HP MJF Applications Across Industries: Automotive, Aerospace, Medical & Manufacturing

Automotive Manufacturing

The automotive industry has embraced MJF 3d printing for both prototyping and end-use parts. Companies like Subaru have used MJF to produce custom functional 3D printed components for concept vehicles, overcoming traditional challenges like high tooling costs and design limitations . Continental Automotive Spain SA uses MJF to develop pneumatic clamping fixtures, significantly reducing machining time for new parts . Jaguar Land Rover engineers use MJF to develop next-generation protective equipment for factory workers .

Medical and Healthcare

MJF 3d printing is revolutionizing the medical field through customized healthcare solutions. During the pandemic, HP and its partners 3D printed over 5 million parts to address supply chain gaps . Companies like SmileDirectClub operate 60+ MJF printers working 24/7 to produce custom dental aligners . The technology enables production of customized orthopedic braces and prosthetic devices, with the recent white PA12 material offering new coloring possibilities for pediatric applications .

Consumer Goods

From eyewear to footwear, MJF 3d printing is enabling innovative consumer products. Pepsi used MJF to create detailed Black Panther-themed drink can covers that required intricate details and deep black coloration . Sports brands like Oakley use MJF to accelerate product development for eyewear and sports equipment . The technology has also been adopted by footwear companies including Decathlon and luxury brand Botter for 3D printed concept athletic shoes .

Unmanned Aerial Vehicles (UAVs)

MJF is particularly suited for drone manufacturing where weight optimization and complex geometries are critical. The technology enables production of lightweight yet mechanically robust components that withstand flight stresses, vibration, and environmental exposure . Its isotropic mechanical properties ensure consistent strength in all directions, unlike FDM or laminated composites that often show weakness along the Z-axis .

Industrial Applications

For industrial applications, MJF produces jigs, fixtures, and tooling with lead times measured in hours rather than weeks. The technology’s ability to create complex internal channels and integrated features makes it ideal for optimized factory equipment . Companies can produce customized tools on demand, reducing inventory costs and enabling workplace personalization.

HP MJF vs SLS vs SLA: Choosing the Right 3D Printing Technology

While there are numerous 3D printing technologies available, MJF occupies a unique position between expensive industrial systems and desktop solutions:

vs. FDM (Fused Deposition Modeling): MJF offers significantly higher print speeds, better surface quality, and isotropic mechanical properties without layer-line weakness.
vs. SLS (Selective Laser Sintering): MJF is approximately 10 times faster than SLS while achieving better precision and higher material reuse rates.
vs. SLA (Stereolithography): MJF produces functional parts with better mechanical properties than typically brittle resin parts from SLA systems.
vs. Injection Molding: While injection molding has lower per-part costs at high volumes, MJF eliminates tooling costs and enables design changes without financial penalties.

The Future of HP Multi Jet Fusion: Scalable Production & Digital Manufacturing

As MJF 3d printing continues to evolve, we can expect several developments:

Expanded material portfolio including more engineering-grade thermoplastics and possibly elastomers
Improved color capabilities building on the existing full-color MJF technology
Large-format systems for bigger build volumes
Hybrid systems combining MJF with other manufacturing technologies
Increased automation for end-to-end manufacturing workflows

HP’s open platform approach encourages collaboration with material partners like BASF, Evonik, and Lubrizol, accelerating material innovation and expanding application possibilities .

Is HP MJF 3D Printing Right for Your Business? Cost, Performance & Scalability

HP Multi Jet Fusion technology represents a significant leap forward in additive manufacturing, offering unparalleled speed, excellent mechanical properties, and economic production from prototyping to mid-volume manufacturing. While the initial investment can be substantial, the technology’s operational efficiency and part quality make it an attractive option for manufacturers across industries.

At Lava3DP, we believe that understanding emerging technologies like MJF is essential for manufacturers looking to maintain a competitive edge. As the technology continues to evolve and become more accessible, we expect to see even more innovative applications that push the boundaries of what’s possible in manufacturing.

Whether you’re considering implementing MJF in your operations or leveraging it through service providers, this technology offers compelling advantages that deserve careful consideration for your manufacturing strategy.

Why Choose Our Professional MJF 3D Printing Service?

As a leading MJF 3D printing service provider and a trusted MJF 3D printing company, we make high-quality, functional part production accessible and efficient. For those searching for reliable “MJF 3D printing near me,” we offer a seamless online service backed by expert support, ensuring professional results regardless of your location. We are committed to affordable MJF 3D printing, providing transparent MJF 3D printing price structures and low MJF 3D printing cost without compromising on material quality or precision. Our expertise is particularly valuable for bulk MJF 3D printing projects, where our economies of scale, consistent output, and streamlined workflow deliver unmatched value for production runs and large-volume prototypes.

At LAVA3DP, we have five MJF 3D printing equipments that operate 24/7, providing customers with high-quality customized products and delivering them quickly. You can click the button below to get an instant MJF 3D printing price quote for the parts.

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